1. Bluetooth version: V5.3
2. Transmission distance: about 10m (without obstacles)
3. Bluetooth chip: AD6973D
4. Bluetooth protocol: HFP, HSP, A2DP, AVRCP
5. Battery capacity: charging bin 500mAh
6. Charging time: about 1.5-2h
7. Speaker resistance: 16 ohms/8mm
8. Speaker output power: up to 5mW
9. Headphone sensitivity: 106dB
10. Frequency range: 50HZ-20KHZ

Features:
1. Hanging ear to wear, comfortable and non-sensory, non-slip and not easy to fall
2. 6mm dynamic speaker, graphene diaphragm, high-fidelity dynamic unit
3. Pick up automatic pairing, rapid connection, signal stability
4. Digital display power screen, easy to view the power usage
5. Dual host dual channel, single binaural mode seamlessly switch, left and right ears can be used separately
6. Touch operation, simple and fast